One do you still have all the smog crap on the car , if you do not it will be a easy one to do , the egr valve is known to stick and cause an idle problem , blank if off to make sure , next is the smog pump , by now most of those are toast , just remove it all to make room under the hood, so that leaves only a few vacuum lines , If you have A/C one line goes to the vacuum can in the right fender to the vacuum tee on the engine , along with a line to the power brakes if you have them , the last one is the distributor , pull the cap off mane make sure the springs inside are not broke and the mech advance is working , install cap back on and set timing to 10 deg , the last line from the dist also goes to the vacuum tee , the engine will speed up when you do, if you stil have idle problems ask if the cam gear set was ever changed , if it has the bolt the holds the cam gear has become lose and the gear will work back and forth giving timing issues , hope this helps later Blaine